Prevent vmdb/plugins_spec from hanging if git tag defaults to sign
Prevent vmdb/plugins_spec from hanging if git tag defaults to sign

If you have git configured to sign tags by default then the plugins_spec
will hand while `git tag` waits for the user to write a tag message.

agrare/manageiq,mzazrivec/manageiq,ManageIQ/manageiq,mzazrivec/manageiq,kbrock/manageiq,jrafanie/manageiq,mzazrivec/manageiq,jrafanie/manageiq,kbrock/manageiq,kbrock/manageiq,jrafanie/manageiq,ManageIQ/manageiq,agrare/manageiq,agrare/manageiq,ManageIQ/manageiq,agrare/manageiq,ManageIQ/manageiq,kbrock/manageiq,jrafanie/manageiq,mzazrivec/manageiq